sprite.java

一个j2me游戏开发引擎

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 

package mmae.game;

import javax.microedition.lcdui.Image;
import mmae.ui.Animate;

public class Sprite extends Animate
{

    public Sprite(Image image)
    {
        super(image);
    }

    public Sprite(Image image, int i, int j)
    {
        super(image, i, j);
    }

    public Sprite(Sprite sprite)
    {
        super(sprite);
    }

    public boolean toHit(Sprite sprite)
        throws NullPointerException
    {
        if(sprite == null)
            throw new NullPointerException();
        //X坐标
        int i = getX();
        //宽
        int j = (i + getWidth()) - 1;
        //Y坐标
        int k = getY();
        //高
        int l = (k + getHeight()) - 1;
        
        int i1 = sprite.getX();
        int j1 = (i1 + sprite.getWidth()) - 1;
        int k1 = sprite.getY();
        int l1 = (k1 + sprite.getHeight()) - 1;
        //从下面接触
        if(i1 > i && i1 < j && k1 > k && k1 < l)
            return true;
        //从上面接触
        if(i1 > i && i1 < j && l1 > k && l1 < l)
            return true;
                    
        if(j1 > i && j1 < j && k1 > k && k1 < l)
            return true;

        return j1 > i && j1 < j && l1 > k && l1 < l;
    }
}